The first-year choice: electing resident status early

Why the choice exists

Residency for tax purposes is decided year by year. A person who arrives in November and stays can fail the substantial presence test for the arrival year, since a few weeks of presence cannot reach 183 weighted days, and then satisfy it the very next year. Without the first-year choice, the arrival year would be all nonresident, even though the person was by then living here. The choice lets such a person treat the later part of that first year as resident time and, in effect, count that part of the year as the start of their U.S. life.

Whether that is good or bad depends on the facts. Resident treatment brings worldwide income into the net for the resident part of the year and opens up the resident rules for that stretch. Nonresident treatment taxes only U.S.-source income and income effectively connected with a U.S. business. The publication presents the choice as an option, not an obligation, which is why the filing procedure matters.

The conditions

Publication 519 sets out who can make the choice for 2025. You must not meet the green card test or the substantial presence test for 2024 or 2025, and you must not have chosen to be treated as a resident for part of 2024, but you must meet the substantial presence test for 2026. You also must satisfy two day-count tests: be present at least 31 days in a row in 2025, and be present on at least 75% of the days from the first day of the 31-day period through December 31, 2025. Days that fall under the substantial presence test exceptions, such as exempt-individual days, are not counted in either test.

The publication notes that you do not have to be married to make this choice, which separates it from the spouse elections. Up to 5 days of absence can be counted as presence for the 75% test only, a feature the calculator builds in.

The publication’s example, step by step

Juan DaSilva, a citizen of the Philippines, first came to the United States on November 1, 2025, and stayed 31 consecutive days through December 1. He left, came back on December 17, and stayed through the end of the year. From November 1 through December 31 there are 61 days, and he was present on 46 of them: the 31 days from November 1 to December 1, and the 15 days from December 17 to December 31. That is 75.4%, so he meets the 75% requirement, and his residency start date would be November 1, 2025.

To reproduce it, enter November 1, 2025 as the start date, 46 days present, and a run of 31. The tool counts 61 days in the period. It treats up to 5 of the 15 absent days as present, so it reports a higher percentage than 75.4%; the extra credit is permitted, and it can only help, never change the outcome in the publication’s example. For the publication’s second example, where Juan was also absent on five additional December days, enter 41 days present: 41 plus the 5 permitted days is 46 of 61, which is again about 75.4%.

What happens to your start date

If you make the choice, your residency starting date is the first day of the earliest 31-day period you use to qualify. You are a resident from that date for the rest of the year. If you were present for more than one 31-day period and meet the 75% test for each, the start is the first day of the first period. If you meet it only for a later period, the start is the first day of that later period. The part of the year before the start date is nonresident time, which makes the year a dual-status year; see the dual-status page for how those years are filed.

The statement and the timing trap

You make the choice by attaching a statement to Form 1040 or 1040-SR for 2025. It must give your name and address and say that you are making the first-year choice for 2025, that you were not a resident in 2024, that you are a resident under the substantial presence test in 2026, how many days you were present in 2026, the dates of your 31-day period and the period of continuous presence in 2025, and the dates of absence in 2025 that you are treating as days of presence.

The trap is timing. You cannot file the return or the statement until you meet the substantial presence test for 2026. If you have not met it by April 15, 2026, you can request an extension to file the 2025 return until a reasonable period after you have met it, using Form 4868 for an extension to October 15, 2026. Pay with the extension the tax you expect to owe, figured as a nonresident alien the entire year; Form 1040-NR can be used to figure it. Unpaid tax draws interest from the regular due date and can draw a late-payment penalty.

Revocation and failure

Once you make the first-year choice you may not revoke it without IRS approval. If you do not follow the procedures, you are treated as a nonresident alien for all of 2025, subject to the usual relief if you show by clear and convincing evidence that you took reasonable actions to learn the procedures and significant steps to comply. For the substantial presence arithmetic that makes the choice available in the first place, see the substantial presence test calculator.

Sources

• IRS Publication 519, U.S. Tax Guide for Aliens (2025): Dual-Status Aliens; First Year of Residency; First-Year Choice; Statement required to make the first-year choice for 2025. Read November 2, 2026.

Edition read: Publication 519 (2025), U.S. Tax Guide for Aliens, for use in preparing 2025 returns. Dollar figures on this page are the ones printed in that edition; check the current publication and form instructions for your tax year. This page summarizes the publication and does not replace it.